Eyeglass-mounting.



G. A. BADER.

EYEGLASS MOUNTING. APPLICATION man APR. 14. 1915. nsuswan MAY n. 1918.

Patented Sept. 10, 1918.

m n W n zTERs 5a.. Imam-1.4mm. \vAsnmG UNITED .s'rn rns PATENT OFFICE.

GUSTAV ADOLPH BADER, or ROCHESTER, NEW YORK.

EYEGLASS-MOUNTING.

Specification of Letters Patent.

Application filed April 14, 1915, Serial No. 21,313. Renewed May 17, 1918. Serial No. 235,205.

To all whom it may concern:

Be it known that I, GUSTAV Aoonrn BADER, a citizen of the United States, and resident of Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Eyeglass-lVlountings, of which the following is a specification.

This invention relates particularly to eyeglass-mountings of the rimless type. To minimize the danger of breakage, particularly when the glasses are not in use, it has been proposed to employ connections be tween the lenses which are more or less flexible, and such flexible connections have the further advantage of permitting the glasses to be more closely and .conveniently fitted to the face of the user. One object of the present invention is to provide flexible connecting-means, for the purpose in question, of a simple and inexpensive but substantial and durable character. Another object of the invention is to provide, in a novel and simple manner, for fixing the connecting-means to the lenses.

To the foregoing ends the invention comprises the novel construction and arrangement of parts hereinafter described, as they are defined in the annexed clailns.

In the accompanying drawings Figure 1 is a plan-View of an eyeglassmounting embodying the present invention;

Fig. 2 is a front-elevation of the same, on a larger scale, showing the parts in normal position;

Fig. 3 is a similar view, showing the parts in one of their extreme displaced positions;

Fig. 4 is a plan view, on a larger scale than Fig. 1, showing another of the displaced positions of the parts;

Fig. 5 is a detail sectional view, on a still larger scale than the other figures, showing a modified construction; and

Fig. 6 is a fore-and-aft sectional view showing a further modification particularly relating to the connection of nose-clamps and a nose-rest with the other parts.

One feature of the present invention resides in the novel form of flexible connection between the lenses. For this purpose I employ in the illustrated embodiment of the invention two helical springs 11 and 12 which are intercoiled, so that their coiled portions have normally a common axis. Each of these springs is provided with oppositely-projecting ends 13, of which one is fastened to one lens 10 and the other to the other lens.

Another feature of the invention resides in the means for fastening the springs to the lenses. For this purpose clamp-plates 1 1- are employed, these plates having recesses 15 in their inner surfaces and being fixed to the lenses by screws 16 passing through the plates concentrically with the recesses, as shown in Fig. The spring-ends 13 are formed with loops at their extremities, as shown in Fig. 5, these loops being seated in the recesses 15 and surrounding the screws 16. By this arrangement the spring-ends are rigidly fixed to the lenses, so that they cannot turn or rock in any direction, and thus the relative movements and positions of the lenses are controlled by the intercoiled portions of the springs.

lVhile the clamp plates are ,particularly useful for the purpose of fastening connecting-means in the form of springs to the lenses, this form of connection has a more general utility in riinless eyeglasses. It is customary in sucheye-glasses to secure each lens to the bridge, or other connecting-member, by making a single perforation in the margin of the lens, and securing the lens in a clip by means of a screw passing through the perforation. Since this screw does not, in itself, preventa pivotal movement of the lens, it is usual also to provide the clip with means engaging the end of the lens, to prevent the lens from swinging about the screw. This construction is unsatisfactory, partly because it is diflioult to keep tight, and partly because the lens frequently breaks at the point weakened by the perforation. In the present arrangement, on the other hand, the use of two perforations in the lens, spaced apart from each other, not only secures the lens rigidly against pivotal movement, without the necessity of any part for engaging the edge of the lens, but also so distributes the strain to which the lens is subjected as to greatly minimize the danger of breakage.

The normal position of the parts is shown in Figs. 1 and 2, but the construction shown in those figures is such as to permit not only relative swinging movement of theflenses about a vertical axis, as shown in Fig. 4, but rocking movements of the lenses in a vertical plane, as shown in Fig. 3, and accordingly an extreme degree of flexibility is provided for which guards effectively against breakage of the connections 01' of the parts of the lenses to which they are attached, and which also permits the glasses to be adjusted conveniently to the face of the wearer. The tendency of the springs is, however, always to return to the normal position in Figs. 1 and 2.

In case the rockin movement illustrated in Fig. 3 be considered undesirable, the parts may be confined to relative angular movement about a vertical axis by confining the coiled portions of the springs to coaxial position, and a convenient means for doing this is shown in Fig. 5, where a pivot-tube 17 is introduced in the coiled portions of the springs and fixed in place by flanges on its ends. In this arrangement the springs act simply as torsional springs.

As a onvenient provision for fixing the noseclamps to the mounting I have shown nose-clamps 18 carried by arms 19 which extend integrally from the inner or rear clamp-plates 14;. An alternative arrangement, however, is shown in Fig. 6, in which the nose-clamps 20, and also a central-nose rest 21, are formed integrally with a pivotmember 22, which is introduced in the coiled portions of the springs in the same manner as the pivot-tube 17 of Fig. 5. The pivot-member is shown as longitudinally cleft, so that it may be formed of one integral piece of sheetanetal with the noseelamps and the nose-rest.

I claim 1. The combination, with a pair of lenses, of a connection comprising two coaxial helically coiled-springs, each spring having its ends connected, respectively, with the two lenses, the coils of one spring lying between the coils of the other.

2. The combination, with a pair of lenses, of a connection comprising two intercoiled torsion-springs, each spring having its ends connected, respectively, with the two lenses, and means for holding the coiled portions of the springs in coaxial position.

3. The combination, with a pair of lenses, of a connection comprising two intercoiled torsion-springs, each spring having its ends connected, respectively, with the two lenses, and a pivot-member introduced in the coiled portions of the springs to hold them in coaxial position.

4. The combination, with a pair of lenses, of a connection between the lenses comprising two coaxially-coiled helical springs having their ends connected to the lenses, a member extending within the coils, and a nose rest carried by said member.

5. The combination, with a pair of lenses, of a connection between the lenses c0mpris ing two coaxially-coiled helical springs secured at their ends to the lenses, a member supported by said springs and having a central nose rest, and a pair of nose clamps for engaging the nose on opposite sides of said rest.

6. The combination, with a pair of lenses, of a resilientconnecton between them embodying a pivoted member provided with a central nose rest and also with a pair of nose clamps on opposite sides of said rest.

7. The combination, with a pair of lenses, of two coaxially' oiled helical springs wound in the same direction and connecting the lenses, each having loops at opposite ends, the loops at the ends of one spring being arranged on one side of each lens and the looped ends of the otherspring beingarranged on the opposite side of each lens, and means for securing the ends.

In testimony whereof I aifix my signature.

GUSTAV ADOLPH BADER.

Copie: 0! this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

